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Pigmented dermatofibrosarcoma (Bednar tumour) of scalp
  1. Apoorva Agarwal and
  2. Chanchal Rana
  1. Pathology, King George's Medical University, Lucknow, India
  1. Correspondence to Dr Apoorva Agarwal; apoorva2190{at}gmail.com

Abstract

Pigmented dermatofibrosarcoma protuberans (DFSP) also known as Bednar tumour is a very rare variant of DFSP which is considered to be of intermediate grade along with the presence of melanin-containing dendritic cells. Only a handful of cases have been described in the literature so far. It is centred around the dermis or subcutis and can pose a diagnostic challenge by being confused with other pigmented lesions of the skin. We hereby report one such unusual case of a man in his late 20s presenting with swelling over the forehead for the past 7 years. Hence a diagnosis of pigmented DFSP should always be considered while reporting pigmented subcutaneous lesions with spindle cell morphology.

  • Pathology
  • Surgical oncology
  • Skin cancer

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Footnotes

  • Contributors AA and CR have been involved in the histopathological evaluation of the specimen. The manuscript was written by AA and checked by CR.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.